Process of packing filters.



G. KNOCK.

PROCESS OF PACKING FILTERS.

APPLICATION FILED JULY 22, 190s.

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PROCESS OF PACKING FILTERS.

APPLICATION FILED JULY 22,1903.

Patented Apr. 20, 1909.

2 SHEETS-SHEET 2.

- UNITED STATES scones nock, 0F cLEvEIJAnD, c1110? t rnoon'ss or raomnsrr'n'rnns. f

To allivhom it may concern:

Be, it known that I, GEORGE KNOOK, a citi-f zen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful of which the following is afull, clear, and exact description, reference being had to the accompanyin drawings. j

- This invention relates to a process of packing filters whereby the filter mass may be packed into a filter and, when so quickl will be of uniform density thro'iighpacke out. 1

\Vhile my process robabl will be appli- "cable for filtering ot er flui s than beer, a widefield of utiht therefor resides in connection with the tering of this particular fluid, In the operation of filters which are used for filtering beer, the liquid is forced un -der pressure through the filter mass, which is gpnerally composed of moist pulp. Insuch ters, it is very essential that the filter mass 7 shall be spread evenly and shall be of uniform there may be noweak spots; for if such spots should develo paths of least resistance for the beer will e provided allowing the beer to ass therethrough unfiltered or ineffectiveness of the filter.

In an application filed contemporaneously] herewith, t ere is shown a filter comprising a body or tank having a plurality of 'erforated inlet and outlet filter members, sac of which occupies the greater portion of the transverse area of the tank, in order that relatively large capacity may be obtained. The inletmem --bers are connected with a common inlet i e 40 for supplying unfiltered beer thereto an t e outlet members with a common outlet pipe for the filtered beer. It has been Proposed to pack a filter of this general type by applying suction thereto during the o eration lacin the filter mass within t e filter tan O viously, in order that suction aplied to either set of members may be effect- 176', it isnecessary that the vacuum produced b such suction shall not be broken and that t erefore' the members shall be substantially covered with the filter mass beforethe application of suction thereto, as otherwise the mass not be drawn and packed around such members. While the application oi Specification of Letters Patent. Application flled'iluly 22, 1908. Serial No. amen,

Improvement in'Processes of Packing Filters,

density or compactness throughout, so that.-

ive y filtered and thus destroyingg the eflect-,

suction to the filter dur iii mg, nevertheless instances, havefoccurred where filters packed in the, manner above do.

scribed do not 0 I11 mes a asmp tlr tendency is to pac packing-the same has-fa' i itated suchpack .at the tops of the members than at the-bot toms thereof and to leaveithe mass is o relatively loose near the bottom of the as to develop weaker loose-spots r'ou h which the beer can flow from thc'inlet tolt e outlet members without beingefijectively fil- It is the object of this invention'to scrim prove the process referred to secure uni; form packing throughout the, entire ,body pf the filter. Generally ipeakin'g, is accom-' lished by exposing o agportionbf the perorated surface of eabh filter member ;.to the action of the suction device andco.ver'

ratentara m 20,1909. T

tank

such exposed portion with the filter-massilap plying suction to the filter masathnsgpp then exposing another portion of themass covered perforated surface eaohfiltermem her and applying suction as before, lnthis, manner, the filter body. or tank is, acked;

with a filter mass, successive layers o v which J have been drawn against suceessive ex used: with t ere?- portions of the filter member? sult that the entire mass of'fil eringrmatefial; in the packed filter tank is unifornily com the resent invention, is illustratedh rein an ap ied to a filter of the typel'shown andmo eful y described in the appljcationzliergeinbefi fore referred to. r a As Sl'lOTl in the drawings,Figuresrreprepacted throughout, thereby the: presence of any weak or loose spots and in-' sents a perspective view ofv a filter having-the invention applied thereto, together \v1th ,a suction pum and showing theioperatlon of packin the ter; Fig. 2.represent s,a %3n i-. tudina vertical sectional anew throu filter shown in Fig. 1, onejof the a j'ustedt ositions of the hood-ca fin iframe and the hoods thereon being shownfln dotted lines; and 3 represents a vertical transverse sectional view through saidfilter and frame.

The filter disclosed in the fi m-wings sists' of a tank having ends 1,"'sid es 2 a bottom 3 with a suitable cpver The bottom is provided 4 and 5 which may be convepiently cast therewit as indicated in the drawings. The former pipe is the inlet pipe through which the beer or other li uid to be filtered is a plied to the filter an the sides 2 by meansof its 6 pivoted tolugs 7 on the sides and adapted to swing into suitable recesses formed in the laterally prothereof ject' sides and ends of the bottom, ea h of six id bolts beingprovided with a su'itab e wing nut 8. The sides. are provided at their upper ends with similar lugs, 9 for bolts- (not shown) by which the cover may be clamped in lace. I

ipe 4 has connected thereto anumber of perforated inlet filter members 10. These.

members are generall and are of substantia top to bottom thereof with a connection 11 pipe 4. connection extends rectangular in shape y uniform width from and are each provided upwardly .a short distance above the bottom 3, carrying the filter member 10 at'its upper end. Outlet pi e 5 has connected thereto a number of per orated outlet members 12,.the bottoms of said, members being insubstantial contact with the bottom 3 and each of said members having a connection 13 at one side communicating with pipe 5. The inlet and outlet members are staggered as ahewn, and. the respective ipes there ore may be located at oppositesides of the bottomplate 3.

For the purpose of securing the uniformity in the conslstencyand density-of the packin 'hereinbefor'e referred to', I provide each 0 the members with a-hood 14. .Each hood conforms in shape to the member with which it is to be used and-is closed at the top and o n at the bottom. The 0 en bottoms are referably in the same horizontal lane an the closed tops are connected to' a rame 15, whichis adapted to rest on top of the filter box, bym'eans of nipples 16 communi eating with a pipe 17 supported by said frame. The en of the pipe .are closed, as bg caps 18, and said pipe isfprovided prefera ly' at the middle thereo with a valvecontrolled connection 19.

2p denotes a chain bridle connected to the frame, b means of which the frame and the attache hoods may be raised and lowered 'by any suitable mechanism, a pulley hook 20 being shown as attached to a ring carried by the bridle. v The pipes 4 and 5 are each provided at op osite ends thereof with valves 21.

2 denotes a Y-connection, the opposite ends of which may be detachably connected to the ends of pipes 4 and 5, as by unions.

the latter is the out et pi e through which the beer or other.

communicating with.

pi e 24 connected to g-snction pum 25.

Vith the arts arran ed as descri ed, the operation will be as f0 lowsz-Frame 17is lowered until it rests on top of the filter tank. The frame is of open-work construction whereby the filter mass may be readily introduced therethrough. When the frame-is resting u on the filter tank, the lower ends of she hoo s are a slight distance above the bottom of' the tank, say two inches. The filtering material is introduced through the frame mto the tank preferably until the tank is filled. Suction is then applied to the pipes 4 and 5, the valves at the ends of said pipesop osite the Y 22 being closed. This auction raws the lower portion of the filter of the filter members. When sufiiciently acked at this point, valve 19 is opened to break the vacuum in the hoods and frame 15 is raised a short distance, sa "two inches. Valve 19 having been closed exerted by the pump will pack the filter mass correspondin to the newly exposed porsaid members.

thereafter upon the filter mass above such members, with the result that the filter tank, whemfull, will be providedwith a filter mass which is firmly packed and which is of uniform density throughout. The last suction will of course, be of the hoods from the tank and the mass will be drawn into place by the suction through the u er perforated ends of the filter membersl he cover will, then be a plied, the filter tank will be disconnected from the suction pump, and the filter will be ready for use.

subject matter of my co- Senal No. 444,699, filed uly 22, 1908.

Having thus described my invention, I claim:

1. The process of packing a filter, consisting in subjecti successive portions of the filterin materia to suction acting entirely billieat the exposed surface of such materi 2. The process of packing a filter, consistin sub ecting successive horizontal layers of filtering material to suction act entirely below the up or surface of each ayer.

3. The process of packing a filter having a perforated member consisti in exposm successive portions of the pe orated area 0 said member to the filter mass, and applying suction to said members.

The process of packing a filter having a tank and a plurality of perforated members therein, consisting in simultaneously exposing to the filter mass successive portions 0 This connection is provided with a flexible,

,mass toward the exposedperforated areas applied after the removal The apparatus shown herein forms the ending application the suction tions of the ter members compactly around This operationis repeated until the hoods have been withdrawn from the upper ends of therfilter members and 6. The process of packing a filter having a tank and a perforated filter member therein,

consisting in. applying to said member a cover, moving said cover along such perforated member to expose successive portions thereof to the filter mass, applying suction to said. member, and breaking the vacuum within. said. cover prior to moving the same.

7. The process of packing a filter having a tank and a perforated filter member therein, consisting in appl 'ng to said member a cover, moving sai cover along such perforated member to expose successive portions thereof to the filter mass, and applying suction to said member.

8. The process of packing afilter having a l tank and a lurality of vertically extended perforated fi. ter members therein, consisting in applying coverings to said members, suc- GOSSIVGl) moving said coverings to expose successive portions of the perforated areas of said members from the bottom upwardly to the filter mass, and applying suction to said members. y

9. The process of packing a filter having a tank and a plurality of vertically extending erforated filter members therein, consisting 1n applying coverings to said members, successively moving said coverings to expose successive portions of the perforated areas of said members from the bottom upwardly to the filter mass, sealing such exposed areas with the filtering mass, appl 'ng suction to said members and breaking t e vacuum produced within said coverings by such suction prior to moving the coverings upwardly.

In testimony whereof, I hereunto affix my signature in the presence of two witnesses.

GEORGE KNOCK.

Witnesses:

J. B. HULL, CHAS. W. Baown. 

